﻿<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title>页面结构和页面节点的综合应用</title>
</head>
<body>
    <header><h1>页眉Header</h1></header>
    <nav>
        <a href="#"title="主页"></a>
    </nav>
</body>
</html>